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Urea impregnated biochar to minimize nutrients loss in paddy soils

Rubber wood sawdust (RWSD) is converted into a porous form of biochar through the slow pyrolysis process. In this study, it is used as a green binder to bind the urea together and form a fertilizer. The objective of the current research is to investigate the effect of biochar impregnation with urea...

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Main Authors: Dimin @ Mohd Amin, Mohd Fairuz, Se, Sian Meng, Shaaban, Azizah, Hashim, Mohammad Muaz
Format: Article
Language:English
Published: Penerbit Universiti Malaysia Pahang 2014
Subjects:
TS Manufactures
Online Access:http://eprints.utem.edu.my/id/eprint/14011/1/18_Dimin_et_al_%281%29.pdf
http://eprints.utem.edu.my/id/eprint/14011/
https://ijame.ump.edu.my/images/Volume_10/18%20Dimin%20et%20al.pdf
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spelling my.utem.eprints.140112023-07-05T12:06:43Z http://eprints.utem.edu.my/id/eprint/14011/ Urea impregnated biochar to minimize nutrients loss in paddy soils Dimin @ Mohd Amin, Mohd Fairuz Se, Sian Meng Shaaban, Azizah Hashim, Mohammad Muaz TS Manufactures Rubber wood sawdust (RWSD) is converted into a porous form of biochar through the slow pyrolysis process. In this study, it is used as a green binder to bind the urea together and form a fertilizer. The objective of the current research is to investigate the effect of biochar impregnation with urea on the N-nutrients retention in soils. The biochars were produced at heating temperatures of 300 °C and 700 °C for 3 hours with continuous nitrogen gas purging at 30 ml/min and a constant heating rate of 5 °C/min. The obtained biochars were characterized by XRD, Boehm titration, pH alkalinity, BET specific surface area and SEM. Boehm titration demonstrated a reduction of acidic functional groups with the increase of heating temperature, recorded as 1.3 and 0.3 mmol/g respectively for 300 °C and 700 °C. Conversely, biochar produced at higher temperature was reported to have a larger specific surface area of 5.4 m2/g. The impregnation was carried out on both biochars produced with molten urea. Results from mineralization showed that the sample with impregnation retained more nutrients in the soil compared to the un-impregnated sample, manifesting biochar as a potential material to be impregnated with urea for slow release and better nutrients retention in soil. Penerbit Universiti Malaysia Pahang 2014 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/14011/1/18_Dimin_et_al_%281%29.pdf Dimin @ Mohd Amin, Mohd Fairuz and Se, Sian Meng and Shaaban, Azizah and Hashim, Mohammad Muaz (2014) Urea impregnated biochar to minimize nutrients loss in paddy soils. International Journal of Automotive and Mechanical Engineering (IJAME), 10. pp. 2016-2024. ISSN 2229-8649 https://ijame.ump.edu.my/images/Volume_10/18%20Dimin%20et%20al.pdf 10.15282/ijame.10.2014.18.0169
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
topic TS Manufactures
spellingShingle TS Manufactures
Dimin @ Mohd Amin, Mohd Fairuz
Se, Sian Meng
Shaaban, Azizah
Hashim, Mohammad Muaz
Urea impregnated biochar to minimize nutrients loss in paddy soils
description Rubber wood sawdust (RWSD) is converted into a porous form of biochar through the slow pyrolysis process. In this study, it is used as a green binder to bind the urea together and form a fertilizer. The objective of the current research is to investigate the effect of biochar impregnation with urea on the N-nutrients retention in soils. The biochars were produced at heating temperatures of 300 °C and 700 °C for 3 hours with continuous nitrogen gas purging at 30 ml/min and a constant heating rate of 5 °C/min. The obtained biochars were characterized by XRD, Boehm titration, pH alkalinity, BET specific surface area and SEM. Boehm titration demonstrated a reduction of acidic functional groups with the increase of heating temperature, recorded as 1.3 and 0.3 mmol/g respectively for 300 °C and 700 °C. Conversely, biochar produced at higher temperature was reported to have a larger specific surface area of 5.4 m2/g. The impregnation was carried out on both biochars produced with molten urea. Results from mineralization showed that the sample with impregnation retained more nutrients in the soil compared to the un-impregnated sample, manifesting biochar as a potential material to be impregnated with urea for slow release and better nutrients retention in soil.
format Article
author Dimin @ Mohd Amin, Mohd Fairuz
Se, Sian Meng
Shaaban, Azizah
Hashim, Mohammad Muaz
author_facet Dimin @ Mohd Amin, Mohd Fairuz
Se, Sian Meng
Shaaban, Azizah
Hashim, Mohammad Muaz
author_sort Dimin @ Mohd Amin, Mohd Fairuz
title Urea impregnated biochar to minimize nutrients loss in paddy soils
title_short Urea impregnated biochar to minimize nutrients loss in paddy soils
title_full Urea impregnated biochar to minimize nutrients loss in paddy soils
title_fullStr Urea impregnated biochar to minimize nutrients loss in paddy soils
title_full_unstemmed Urea impregnated biochar to minimize nutrients loss in paddy soils
title_sort urea impregnated biochar to minimize nutrients loss in paddy soils
publisher Penerbit Universiti Malaysia Pahang
publishDate 2014
url http://eprints.utem.edu.my/id/eprint/14011/1/18_Dimin_et_al_%281%29.pdf
http://eprints.utem.edu.my/id/eprint/14011/
https://ijame.ump.edu.my/images/Volume_10/18%20Dimin%20et%20al.pdf
_version_ 1772815998587502592
score 13.211869

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